dma.h

/*
 * Copyright (C) 2016 Felix Fietkau <nbd@openwrt.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */
#ifndef __MT76_DMA_H
#define __MT76_DMA_H

#define MT_RING_SIZE			0x10

#define MT_DMA_CTL_SD_LEN1		GENMASK(13, 0)
#define MT_DMA_CTL_LAST_SEC1		BIT(14)
#define MT_DMA_CTL_BURST		BIT(15)
#define MT_DMA_CTL_SD_LEN0		GENMASK(29, 16)
#define MT_DMA_CTL_LAST_SEC0		BIT(30)
#define MT_DMA_CTL_DMA_DONE		BIT(31)

struct mt76_desc {
	__le32 buf0;
	__le32 ctrl;
	__le32 buf1;
	__le32 info;
} __packed __aligned(4);

int mt76_dma_attach(struct mt76_dev *dev);
void mt76_dma_cleanup(struct mt76_dev *dev);

#endif